And that is the fact that Unicode also has U+01f7, a.k.a. LATIN CAPITAL LETTER WYNN, and has had it since Unicode 3.0!

But the Swedish tables do not put these two letters next to each other.

This other letter is on our collation tables, given special weight for Turkmen (0x0442), which does not put it anywhere near the lowercase version.

And our default table does not put them anywhere near each other, either.

Of course in our casing table update in Vista, both characters are there and map to each other (prior to Vista they did not; this is one of the many mappings that was missing!).

And Unicode's default collation table does have them right next to each other.

Now this is somewhere between zero and three problems, depending on whether Swedish/Finnish, Turkmen, or the default table should be putting them near each other. They do not seem to be put together in languages that use one or the other, so it is honestly unclear whether one would expect them to be put together.

Is this yet another time where collation != case (like I have mentionedbefore), and an interesting one, to boot? :-)

Anyone from Sweden, Finland, Turkmenistan, or elsewhere have any opinions here about this issue with WYNN and CAPITAL WYNN?

I'm Swedish, and my only input on this is that I have never seen the "WYNN" character before, let alone used it, but not considering W and V separate characters (as separate as A and Q, really) would seem extremely strange to me.

Åke Persson on 1 Aug 2007 5:50 AM:

In the Vista default table, U+01f7 LATIN CAPITAL LETTER WYNN has been given a weight to sort as a variation of the letter P, while U+01bf LATIN LETTER WYNN is sorted as a variation of letter W. Being the only casing pair not sorted close to each other, this definitly looks like a bug:-)

BTW, an other strange thing in the default table is that U+0192 LATIN SMALL LETTER F WITH HOOK is sorted after U+0191 LATIN CAPITAL LETTER F WITH HOOK. Being the only casing pair where the small letter is not sorted before the corresponding capital letter, this also looks like a bug:-)

Åke Persson on 1 Aug 2007 4:15 PM:

Yet another amazing fact about the Vista default table;-)

The letter YOGH (U+021D, U+021C) is sorted as a variation of the letter E!